This is our Excellent Adventure Thru-Axle. It upgrades your bikes rear end for hauling cargo trailers, should you feel like taking Rufus along on your errands. Extensive product testing with our Bill and Ted Trailers provided an awesome experience, but time travel remains a risky endeavor.

Designed for use with slotted horizontal or vertical single-position dropouts, the Excellent Adventure Axle is compatible only with 12 x 148mm hubs.

Compatible Surly models include Karate Monkey, Krampus, Grappler, Ogre, Lowside, ECR, and Troll. Once again, the 12 x 148mm hub requirement cannot be overstated. Visit your local Surly dealer to discuss other scenarios you may have in mind.